package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.itheima.constant.RedisConstant;
import com.itheima.dao.SetmealDao;
import com.itheima.entity.PageResult;
import com.itheima.entity.QueryPageBean;
import com.itheima.pojo.Setmeal;
import com.itheima.service.SetmealService;
import freemarker.template.Configuration;
import freemarker.template.Template;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
import redis.clients.jedis.JedisPool;

import java.io.File;
import java.io.FileWriter;
import java.io.Writer;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
//体检套餐服务
@Service(interfaceClass = SetmealService.class)
@Transactional
public class SetmealServiceImpl implements SetmealService {
    @Autowired
    private FreeMarkerConfigurer freeMarkerConfigurer;
    @Autowired
    private SetmealDao setmealDao;
    @Autowired
    private JedisPool jedisPool;
    @Value("${out_put_path}")
    private String outPutPath;
    @Override
    public void add(Setmeal setmeal, Integer[] checkgroupIds) {
        setmealDao.add(setmeal);
        Integer setmealId = setmeal.getId();
        setSetmealAndCheckgroup(setmealId,checkgroupIds);
        savePic2Redis(setmeal.getImg());
        generateMobileStaticHtml();
    }
    //生成当前方法所需的静态页面
    public void generateMobileStaticHtml(){
        //生成前需要查询数据
        List<Setmeal> list = setmealDao.findAll();
        //需要生成套餐列表静太页面
        generateMobileSetmealListHtml(list);
        //套餐详情静态页面
        generateMobileSetmealDetailHtml(list);
    }
    //需要生成套餐列表静太页面
    public void generateMobileSetmealListHtml(List<Setmeal> list){
        Map map = new HashMap();
        //为模板提供数据 用于生成静态页面
        map.put("setmealList",list);
        generteHtml("mobile_setmeal.ftl","m_setmeal.html",map);
    }
    //套餐详情静态页面
    public void generateMobileSetmealDetailHtml(List<Setmeal> list){
        for (Setmeal setmeal : list){
            Map map = new HashMap();
            map.put("setmeal",setmealDao.findById(setmeal.getId()));
            generteHtml("mobile_setmeal_detail.ftl","setmeal_detail_" + setmeal.getId() + ".html",map);
        }
    }
    //通用
    public void generteHtml(String templateName,String htmlPageName,Map map){
        Configuration configuration = freeMarkerConfigurer.getConfiguration();//获得配置对象
        Writer out = null;
        try {
            Template template = configuration.getTemplate(templateName);
            //构造输出流
            out = new FileWriter(new File(outPutPath + "/" + htmlPageName));
            //输出文件
            template.process(map,out);
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }



    @Override
    public PageResult pageQuery(QueryPageBean queryPageBean) {
        PageHelper.startPage(queryPageBean.getCurrentPage(),queryPageBean.getPageSize());
        Page<Setmeal> page = setmealDao.selectByCondition(queryPageBean.getQueryString());
        return new PageResult(page.getTotal(),page.getResult());
    }

    @Override
    public Setmeal findById(int id) {
        return setmealDao.findById(id);
    }

    @Override
    public List<Setmeal> findAll() {
        return setmealDao.findAll();
    }

    //将图片名称保存到Redis
    private void savePic2Redis(String pic){
        if (pic != null){
            jedisPool.getResource().sadd(RedisConstant.SETMEAL_PIC_DB_RESOURCES,pic);
        }
    }
    //设置套餐和检查组多对多关系，操作t_setmeal_checkgroup
    public void setSetmealAndCheckgroup(Integer setmealId,Integer[] checkgroupIds){
        if(checkgroupIds != null && checkgroupIds.length > 0){
            for (Integer checkgroupId : checkgroupIds) {
                Map<String,Integer> map = new HashMap<>();
                map.put("setmeal_id",setmealId);
                map.put("checkgroup_id",checkgroupId);
                setmealDao.setSetmealAndCheckGroup(map);
            }
        }
    }
}
